The Actual Definition of Muscle Tone. Muscle tone, also known as muscle tonus or residual muscle tension, is an unconscious low level contraction of your muscles while they are at rest. Essentially, muscle tone is what makes your muscles still feel somewhat firm while you are resting and not intentionally tensing them.
Everyone experiences abdominal pain from time to time. Other terms used to describe abdominal pain are stomachache, tummy ache, gut ache and bellyache. Abdominal pain can be mild or severe. It may be continuous or come and go. Abdominal pain can be short-lived (acute) or occur over weeks and months (chronic).
Dyspepsia is a burning feeling and discomfort in the upper middle part of your stomach. Itâs also known as indigestion. Pain can be intermittent. Some people with dyspepsia may: 1  feel bloated. 2  have heartburn. 3  feel uncomfortably full. 4  be nauseated. 5  have an upset stomach.